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Finding the Fourth Proportional to 335.89, 463.58 and 280.54

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Solution

The fourth proportional to 335.89, 463.58 and 280.54 is: 387.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.89 : 463.58 = 280.54 : x
  2. Step 2: Convert to fraction form
    335.89/463.58 = 280.54/x
  3. Step 3: Cross multiply
    335.89x = 463.58 × 280.54
  4. Step 4: Simplify right side
    335.89x = 130,052.73
  5. Step 5: Solve for x
    x = 130,052.73/335.89
  6. Step 6: Final answer
    x = 387.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.